Home / 12,547.86-18,826.40-5,150.34

Finding the Fourth Proportional to 12,547.86, 18,826.40 and 5,150.34

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Solution

The fourth proportional to 12,547.86, 18,826.40 and 5,150.34 is: 7,727.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,547.86 : 18,826.40 = 5,150.34 : x
  2. Step 2: Convert to fraction form
    12,547.86/18,826.40 = 5,150.34/x
  3. Step 3: Cross multiply
    12,547.86x = 18,826.40 × 5,150.34
  4. Step 4: Simplify right side
    12,547.86x = 96,962,360.98
  5. Step 5: Solve for x
    x = 96,962,360.98/12,547.86
  6. Step 6: Final answer
    x = 7,727.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.